CoreXY mod for FFCM

Update (1.2.2023) : I made a whoopsie on a lot of parts and have re-uploaded them all with better tolerances, chamfers to avoid screw holes I hadn't considered, and some obvious mistakes that had been made in printing.



This is a long one that requires far too much context for it to make sense at first look.

I have recently acquired a FlashForge Creator PRO (for VERY CHEAP) but the bed is just way too small for me, and I don't really take advantage of the dual extruders in anything (as well as being incredibly avoidant to their slicer!)

I also have a CR10 mini which is perfectly fine for everything I do and have had no issues with it before - but I would like an enclosure.

I decided to combine the two printers together in some crazy abomination of a printer, fit with an E3D Hemera and CR-Touch, as well as converting the whole motion system to CoreXY.

In the model - I have included some large tolerances for some components which may not be compatible with a printer th